1, know spheres and cylinders, and distinguish their similarities and differences.

2. Learn to make spheres and cylinders, and construct combined objects of spheres and cylinders.

3. Cultivate children's comprehensive ability of observation, comparison, imagination, analysis and hands-on ability through activities such as touching, measuring, rolling and doing.

4. Cultivate children's interest in exploration and develop their creativity and thinking ability.

Activities to be prepared

1, prepare various balls. Such as ball, basketball, football, table tennis, glass ball, shot put, plastic ball, etc.

2. Prepare some cylindrical toys. Such as building blocks, plastic products, sticks, unused pencils, kaleidoscopes, etc.

3. Collect various spheres and cylinders for packaging. Such as football ice cream boxes, small pill boxes, cans, malt extract cans, etc.

4. Prepare some calendar paper, whiteboard paper, plasticine, ruler, tape, thread, scissors and paste.

Activity process

First of all, interesting areas

1. Let the children guess: chubby, round, unstable, unstable, roll as soon as they touch the ground.

2. Ask the children to play with the ball. Children choose balls according to their own wishes and play with them by touching, rolling, kicking, patting, holding and throwing.

Let the children answer the teacher's question: What ball are you playing? How to play? What did you find when you were playing?

4. Teacher's summary: Many balls, although different in color, size and play, have the same shape. No matter which direction you look, it is round. They are always unstable and rolling on the ground. This is a ball.

5. Teachers and students create children's songs: the ball is round, and it is round from any side; The ball is unstable and can roll anywhere.

Second, interesting cylinders.

1. Please measure useless pencils, sticks, kaleidoscopes, etc. With a line, a ruler and a small hand, look at the size of the circle at both ends and the distance between the two circles, and tell me what you find.

2. Let the children roll cans, malt cans, etc. And tell them in what direction.

Please arrange the cylindrical building blocks, plastic products and sticks in the order of height and thickness to see what they look like.

4. Teacher's summary: When measuring, there are two circles with the same size at both ends, and the vertical distance between the two circles is the same; When scrolling, you can only scroll in two opposite directions; Arranged vertically, it looks like a pillar. This is a cylinder.

Third, the difference between a sphere and a cylinder.

1. Let the children take two toys (a ball and a cylinder) and roll on the ground in the same way to see if they are different and can stop and stand firm.

2. Guide the children to try to overlap two spheres and two cylinders respectively and observe what will happen.

3. Teacher's summary: The sphere can roll in all directions, and the cylinder can only roll in two opposite directions; There are no planes on the sphere and they cannot overlap. There are two equal planes at both ends of a cylinder, which can overlap.

Fourth, dexterous little hands

1. Let the children think. What is the sphere in kindergarten, family or other public places? What is a cylinder? Talk about their names and functions respectively.

2. Provide children with whiteboard paper, calendar paper, plasticine and other production materials for them to make by hand.

For children with poor ability, only spherical and cylindrical models are required; For children with strong ability, they are required to construct compositions, such as pavilions, climbing frames, rollers, etc. For children with average ability, they are required to complete simple combination objects, such as ice cream dolls and Peking Opera clowns. Children can complete tasks independently or in groups.

Teachers can help children with difficulties to complete; Encourage and affirm children who are bold and innovative, and provide them with the conditions to complete their works.

3. Exhibition of works. Let children appreciate the masterpieces of themselves and their peers and experience the happiness brought by success.

Verb (abbreviation for verb) Commodity Fair

1. Provide children with a certain activity place.

2. Guide children to classify homemade works, collected toys and waste items according to the characteristics of spheres and cylinders; Then according to the types of goods (such as food, toys, daily necessities), the second classification is carried out.

3. Place shelves and decorate the environment. Children unload goods according to the signs.

4. Develop creative games: "Commodity Fair". Children are required to tell the names and appearance characteristics of various commodities during the exhibition.